CN101241065B - Battery pole piece active substance and current collector adhesion force test method - Google Patents
Battery pole piece active substance and current collector adhesion force test method Download PDFInfo
- Publication number
- CN101241065B CN101241065B CN200710004898XA CN200710004898A CN101241065B CN 101241065 B CN101241065 B CN 101241065B CN 200710004898X A CN200710004898X A CN 200710004898XA CN 200710004898 A CN200710004898 A CN 200710004898A CN 101241065 B CN101241065 B CN 101241065B
- Authority
- CN
- China
- Prior art keywords
- pole piece
- active substance
- instant
- battery pole
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013543 active substance Substances 0.000 title claims abstract description 25
- 238000010998 test method Methods 0.000 title description 3
- 239000004568 cement Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001651 Cyanoacrylate Polymers 0.000 claims description 2
- NLCKLZIHJQEMCU-UHFFFAOYSA-N cyano prop-2-enoate Chemical class C=CC(=O)OC#N NLCKLZIHJQEMCU-UHFFFAOYSA-N 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A detecting method of an active substance on a battery pole piece and the adhesive force of a current collector is provided, comprising the following steps of: adhering one surface with the active substance of the pole piece on a stretching piece by instant cement, adhering another surface of the pole piece onto a fixed piece by instant cement, after the instant cement solidifies, dragging the stretching piece with a stretching angle theta, recording the tension F when the stretching piece falls. The invention can measure the active substance of unit area on the battery pole piece and the adhesive force of the current collector accurately. The invention can control adhering property of the active substance and the pole piece strictly in the production process. The invention avoids potential safety hazard of the coil battery core.
Description
Technical field
The present invention relates to the method for testing of the active substance and the collector adhesion of battery pole piece.
Background technology
In all kinds of convoluted lithium batteries; Active substance on the pole piece and the bondability between the collector affect the security of battery to a great extent; If active substance and collector are bonding not tight; So in use come off because of vibrations cause inside battery pole piece active substance easily, fall into active matter light weight in the electrolytic solution and then cause electric core performance to descend, heavy then cause battery explosion.The current battery production field, the just macroscopic view of non-activity material and collector adhesion is judged the size of adhesion, and can not provide quantitative data, error in judgement is big.
Summary of the invention
The method of testing that the purpose of this invention is to provide a kind of active substance and collector adhesion of battery pole piece, this method can accurately be measured active substance and the adhesion of collector on the battery pole piece unit area.
Technical scheme: the method for testing of the active substance of battery pole piece and collector adhesion; Comprise the steps; The one side that has active substance on the pole piece is sticked on the tensioning member with Instant cement, and the another side of pole piece sticks on the fixture with Instant cement, after Instant cement solidifies; With traction angle θ traction tensioning member, tensile force f when the record tensioning member comes off;
The one side of pole piece and fixture bonding is the collector of non-activity material on the pole piece;
The traction angle θ of power spends smaller or equal to 90 greater than 0 degree, is preferably greater than to equal 30 degree, smaller or equal to 60 degree.
Said Instant cement is a kind of in 401 Instant cements, 402 Instant cements, 403 Instant cements.
Said Instant cement is 401 Instant cements.
Said 401 Instant cements are cyanoacrylate.
Beneficial effect: a kind of being exclusively used between test pole piece and active substance provided by the invention is connected power, can strict control the adhesive property of active substance and pole piece in process of production well, got rid of the potential safety hazard of convoluted electric core.
Description of drawings
Fig. 1 is cohesive force test philosophy figure.
Embodiment
Embodiment 1
Using 401 Instant cements 4 to stick on the surface one side that has active substance 2 on the pole piece 1 is on 1 square centimeter the tensioning member 6; The another side of pole piece 1 sticks on the fixture 5 with 401 Instant cements 4; 401 Instant cements solidified after 30 seconds, with angle 90 degree traction tensioning members 6, tensile force f when the record tensioning member comes off.
Test respectively 10 times, record tensile force f and be respectively 0.10 N, 0.12 N, 0.14 N, 0.13 N, 0.11 N, 0.10 N, 0.10 N, 0.09 N, 0.11 N, 0.13 N.
Embodiment 2
Using 402 Instant cements 4 to stick on the surface one side that has active substance 2 on the pole piece 1 is on 1 square centimeter the tensioning member 6; The another side of pole piece 1 sticks on the fixture 5 with 402 Instant cements 4; 402 Instant cements 4 solidified after 30 seconds; Stretch part 6, tensile force f when the record tensioning member comes off with angle 60 degree traction positions.
Test respectively 10 times, record tensile force f and be respectively 0.15 N, 0.14 N, 0.12 N, 0.11 N, 0.11 N, 0.10 N, 0.12 N, 0.11 N, 0.13 N, 0.14.
Embodiment 3
Using 403 Instant cements 4 to stick on the surface one side that has active substance 2 on the pole piece 1 is on 1 square centimeter the tensioning member 6; The another side of pole piece 1 sticks on the fixture 5 with 403 Instant cements 4; 403 Instant cements 4 solidified after 30 seconds; With angle 60 degree traction tensioning members 6, tensile force f when the record tensioning member comes off.
Test respectively 10 times, record tensile force f and be respectively 0.15 N, 0.12 N, 0.13 N, 0.14 N, 0.11 N, 0.11 N, 0.12 N, 0.11 N, 0.14,0.10 N.
Claims (5)
1. the method for testing of the active substance of battery pole piece and collector adhesion; Comprise the steps; The one side that has active substance on the pole piece is sticked on the tensioning member with Instant cement, and the another side of pole piece sticks on the fixture with Instant cement, after Instant cement solidifies; With traction angle θ traction tensioning member, tensile force f when the record tensioning member comes off;
The one side of pole piece and fixture bonding is the collector of non-activity material on the pole piece;
The traction angle θ of tensile force f spends smaller or equal to 90 greater than 0 degree.
2. the method for testing of the active substance of battery pole piece according to claim 1 and collector adhesion is characterized in that: the traction angle θ of tensile force f is more than or equal to 30 degree, smaller or equal to 90 degree.
3. the method for testing of the active substance of battery pole piece according to claim 1 and collector adhesion is characterized in that: said Instant cement is a kind of in 401 Instant cements, 402 Instant cements, 403 Instant cements.
4. the method for testing of the active substance of battery pole piece according to claim 1 and collector adhesion, it is characterized in that: said Instant cement is 401 Instant cements.
5. the method for testing of the active substance of battery pole piece according to claim 4 and collector adhesion, it is characterized in that: 401 Instant cements are cyanoacrylates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710004898XA CN101241065B (en) | 2007-02-06 | 2007-02-06 | Battery pole piece active substance and current collector adhesion force test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710004898XA CN101241065B (en) | 2007-02-06 | 2007-02-06 | Battery pole piece active substance and current collector adhesion force test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101241065A CN101241065A (en) | 2008-08-13 |
| CN101241065B true CN101241065B (en) | 2012-08-08 |
Family
ID=39932765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710004898XA Expired - Fee Related CN101241065B (en) | 2007-02-06 | 2007-02-06 | Battery pole piece active substance and current collector adhesion force test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101241065B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235957B (en) * | 2011-07-21 | 2015-09-02 | 东莞新能源科技有限公司 | The close-burning detection method of electrodes of lithium-ion batteries and equipment thereof |
| CN105203451A (en) * | 2015-09-18 | 2015-12-30 | 福建蓝海黑石科技有限公司 | Representation method for cohesion of coating |
| CN105181584A (en) * | 2015-09-23 | 2015-12-23 | 合肥国轩高科动力能源有限公司 | Device for qualitatively testing adhesion performance of battery pole piece |
| CN106568710A (en) * | 2016-11-16 | 2017-04-19 | 双登集团股份有限公司 | Method for measuring bonding force between lead paste and grid |
| CN109632630B (en) * | 2017-10-09 | 2022-04-26 | 深圳先进技术研究院 | Method and equipment for testing adhesive force of battery pole piece |
| CN109839352B (en) * | 2017-11-29 | 2021-04-30 | 中国石油天然气股份有限公司 | Method and device for detecting fit degree between metal workpiece and coating |
| CN108896479A (en) * | 2018-04-14 | 2018-11-27 | 连云港海创电子科技有限公司 | A kind of detection method of the nickel layer adhesive force of polymer pole ear |
| CN110243718B (en) * | 2019-07-11 | 2024-05-03 | 成都市银隆新能源产业技术研究有限公司 | Method and device for testing cohesiveness of battery pole piece |
| CN110646344A (en) * | 2019-09-29 | 2020-01-03 | 深圳好电科技有限公司 | Characterization method and characterization device for electrode plate bonding performance |
| CN114112900A (en) * | 2021-11-19 | 2022-03-01 | 湖北理工学院 | Icing force test system for anti-icing material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865921A (en) * | 2006-06-06 | 2006-11-22 | 青岛理工大学 | Tensile bond strength testing method |
| CN200975973Y (en) * | 2006-11-09 | 2007-11-14 | 比亚迪股份有限公司 | Device for testing slurry adhesive force of battery plate |
-
2007
- 2007-02-06 CN CN200710004898XA patent/CN101241065B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865921A (en) * | 2006-06-06 | 2006-11-22 | 青岛理工大学 | Tensile bond strength testing method |
| CN200975973Y (en) * | 2006-11-09 | 2007-11-14 | 比亚迪股份有限公司 | Device for testing slurry adhesive force of battery plate |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-194599A 2006.07.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101241065A (en) | 2008-08-13 |
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Effective date of registration: 20160831 Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000 Patentee after: SHENZHEN BAK BATTERY CO., LTD. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Shenzhen Bak Battery Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20190206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |